Question

How many moles of molecules are there in 16g oxygen?

Answer 1

0.5 moles

Step-by-step explanation:

To calculate the number of moles of molecules in 16g of oxygen, we have to use the following formula:

`\boxed{\mathrm{Number \ of \ moles = (Mass \ (g))/(Molar \ mass \ (g/mol))}}`.

The molar mass of oxygen is 16 g/mol, but one molecule of oxygen contains two oxygen atoms. Therefore, the molar mass of an oxygen molecule is 32 g/mol.

Using this information and the formula above, we can calculate the number of moles of oxygen:

Number of moles =
`\mathrm{(16\ g)/(32 \ g/mol)}`

= 0.5 mol

Therefore, there are 0.5 moles of molecules in 16g grams of oxygen.

Answer 2

0.5 moles

Step-by-Step Explanation:

0.5 moles